21792400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:249

約数の個数: 120

約数和(自身を含む): 61565504

約数和(自身を除く): 39773104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 43, 50, 56, 70, 80, 86, 100, 112, 140, 172, 175, 181, 200, 215, 280, 301, 344, 350, 362, 400, 430, 560, 602, 688, 700, 724, 860, 905, 1075, 1204, 1267, 1400, 1448, 1505, 1720, 1810, 2150, 2408, 2534, 2800, 2896, 3010, 3440, 3620, 4300, 4525, 4816, 5068, 6020, 6335, 7240, 7525, 7783, 8600, 9050, 10136, 12040, 12670, 14480, 15050, 15566, 17200, 18100, 20272, 24080, 25340, 30100, 31132, 31675, 36200, 38915, 50680, 54481, 60200, 62264, 63350, 72400, 77830, 101360, 108962, 120400, 124528, 126700, 155660, 194575, 217924, 253400, 272405, 311320, 389150, 435848, 506800, 544810, 622640, 778300, 871696, 1089620, 1362025, 1556600, 2179240, 2724050, 3113200, 4358480, 5448100, 10896200, 21792400]

約数ペア:

[(1, 21792400), (2, 10896200), (4, 5448100), (5, 4358480), (7, 3113200), (8, 2724050), (10, 2179240), (14, 1556600), (16, 1362025), (20, 1089620), (25, 871696), (28, 778300), (35, 622640), (40, 544810), (43, 506800), (50, 435848), (56, 389150), (70, 311320), (80, 272405), (86, 253400), (100, 217924), (112, 194575), (140, 155660), (172, 126700), (175, 124528), (181, 120400), (200, 108962), (215, 101360), (280, 77830), (301, 72400), (344, 63350), (350, 62264), (362, 60200), (400, 54481), (430, 50680), (560, 38915), (602, 36200), (688, 31675), (700, 31132), (724, 30100), (860, 25340), (905, 24080), (1075, 20272), (1204, 18100), (1267, 17200), (1400, 15566), (1448, 15050), (1505, 14480), (1720, 12670), (1810, 12040), (2150, 10136), (2408, 9050), (2534, 8600), (2800, 7783), (2896, 7525), (3010, 7240), (3440, 6335), (3620, 6020), (4300, 5068), (4525, 4816)]